package com.example.common.core.domain;

import com.example.common.core.enums.ResultCode;
import lombok.Data;


@Data
public class R<T> {

    private int code; //定义一些固定的code  枚举

    private String msg; // 通常是code的辅助说明

    private T data;  //请求某个接口返回的数据 泛型



    public static <T> R<T> ok(){
        return assembleResult(null, ResultCode.SUCCESS);
    }

    public static <T> R<T> ok(T data){
        return assembleResult(data, ResultCode.SUCCESS);
    }

    public static <T> R<T> fail(){
        return assembleResult(null,ResultCode.FAILED);
    }

    public static <T> R<T> fail(ResultCode resultCode){
        return assembleResult(null,resultCode);
    }
    public static <T> R<T> fail(int code, String msg) {
        return assembleResult(code, msg, null);
    }
    private static <T> R<T> assembleResult(int code, String msg, T data) {
        R<T> r = new R<>();
        r.setCode(code);
        r.setData(data);
        r.setMsg(msg);
        return r;
    }

    private static <T> R<T> assembleResult(T data, ResultCode resultCode) {
        R<T> r=new R<>();
        r.setCode(resultCode.getCode());
        r.setMsg(resultCode.getMsg());
        r.setData(data);
        return r;
    }
}
